Emerson Cash Valve B Series Service Installation Instruction

CASH VALVE TYPE B 1 ¼" - 2" PRESSURE REGULATOR

OXYGEN SERVICE INSTALLATION INSTRUCTION

Before installation, these instructions must be read carefully and understood.

DESCRIPTION

The Type B pressure reducing and regulating
valve automatically reduces a high inlet
pressure to a lower delivery pressure and
maintains the lower pressure within reasonably
close limits regardless of the pressure
fluctuations on the inlet side of the valve.

SPECIFICATION DATA

Service: Oxygen gas (including medical

grade oxygen)

Sizes: 1 ¼, 1 ½ and 2" (32, 38 and 51 mm)
Connections: Threaded internal inlet and outlet
Body Material: Bronze
Temperature Rating: +150 to -320°F

(65.6 to -195.6°C)

Maximum Initial Pressure: 400 psi (27.58 bar)
Capacity: For specific capacity information,

consult the factory.

GENERAL INSTALLATION INSTRUCTIONS

The Type B regulator should be installed in the
horizontal position with the spring chamber
upright. For other installation requirements,
consult the factory. For easy operation and
maintenance, it is suggested that manual
shut-off valves be installed upstream and
downstream from the valve. Before installing
the valve, all piping should be thoroughly
flushed out to remove any foreign material.
Install the valve with the inlet pipe fitted to
the inlet connection identified on the valve
body. Use a compatible sealant on the male
pipe threads and do not over tighten the
valveconnections.

CONSTRUCTION

Bronze body, brass internal trim, Buna-N
diaphragms and seat, Stainless steel
pressurespring.

All parts are commercially cleaned for
oxygenservice.

OPERATING INSTRUCTIONS

Adjusting the Delivery Pressure

The regulator’s delivery pressure setting is
adjusted by turning the Adjusting Screw (2) or
optional T-Handle (1) at the top of the Spring
Chamber (5) after loosening the Adjusting
Screw Lock Nut (3). To increase the delivery
pressure, turn the adjusting screw clockwise
(into the spring chamber). To decrease the
delivery pressure, turn the adjusting screw
counter-clockwise (out of the spring chamber).
Tighten the adjusting screw lock nut after the
adjustment has been made.

MAINTENANCE INSTRUCTIONS

CAUTION

Before attempting to replace any spare parts, be
sure to shut off all pressure connections to the
valve. With the valve closed, the system pressure
could still be locked between the shut-off valve
and the inlet and/or outlet sides of the regulator.
Before proceeding with any valve service, be
certain to relieve the pressure from both sides of
the regulator.

Refer to section view for parts identification.
Repair parts can easily be installed without
removing the regulator from the line.

Emerson.com/FinalControl © 2018 Emerson. All rights reserved. VCIOM-10800-EN 19/06

CASH VALVE TYPE B 1 ¼" - 2" PRESSURE REGULATOR

OXYGEN SERVICE INSTALLATION INSTRUCTION

No. Control Description Construction

1 T-Handle Sub (Opt.) Steel

2 Adjusting Screw Steel

3 Lock Nut Steel

4 Name Plate Aluminum

5 Spring Chamber Bronze

6 Spring Button Steel or Iron

7 Pressure Spring Steel

8 Pressure Plate Brass

9 Diaphragm Buna-N

10 Screw Steel

11 Nut Steel

12 Pusher Post Button Brass

13 Screen SST or Monel

14 Seat Disk Buna-N

15 Cylinder Brass

16 Piston and Post Brass

17 Body Bronze

18 Gasket Fiber/Copper

19 Piston Spring SST

20 Bottom Plug Bronze

FIGURE 1

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Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Cash Valve is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions,
Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.

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